Please can you explain what it is and how does the bitcoin work?

Install the program bitcoin and start the generation procedure, the host begins to make calculations to solve the nodes, the faster the computer and more there are likely to be the first to solve specific nodes that allow user to earn bitcoin, but with the passage of time, this solution is becoming increasingly difficult and may take a long time to earn some bitcoins unless you have a PC considerably powerful. The second method is very convenient, especially if you have a slow pc, is to join a “Mining Pool”. Mining pool usually a grid computing used by people who decided to join as a group and share their computation capabilities to get more bitcoin possible. The total amount of coins acquired will be divided by the members of the group based on the percentage calculation made available to everyone